Lichen ID required

I think this is a type of lichen, it is growing in my garden in the North Okanagan in BC, it is in a shady area where it is moist, but have also seen it in the direct sun but it is more shriveled and dry looking have posted pictures of both. I thought it might be Freckle Pelt (Peltigera Britannica) but am not sure. Can this be invasive?

 

Check this out.
Not a Lichen, a Liverwort - Marchantia Polymorpha. barb

 

Thank you very much.